tunnel_map.h
author Darkvater
Sun, 03 Sep 2006 23:02:42 +0000
changeset 4540 ceddbcae93d9
parent 3369 cab209754317
child 4666 172a0cdf28a6
permissions -rw-r--r--
(svn r6369) -Fix (r5886): On loading of game in scenario editor the player was given
the maximum amount of money so everything can be removed for sure. However
if first rails are removed (or property in general that *gives* money
when demolished, the player's money would overflow. Thanks for noticing Rubidium.
/* $Id$ */

#ifndef TUNNEL_MAP_H
#define TUNNEL_MAP_H

#include "direction.h"
#include "macros.h"
#include "map.h"
#include "rail.h"


static inline bool IsTunnel(TileIndex t)
{
	assert(IsTileType(t, MP_TUNNELBRIDGE));
	return !HASBIT(_m[t].m5, 7);
}


static inline bool IsTunnelTile(TileIndex t)
{
	return IsTileType(t, MP_TUNNELBRIDGE) && IsTunnel(t);
}


static inline DiagDirection GetTunnelDirection(TileIndex t)
{
	assert(IsTunnelTile(t));
	return (DiagDirection)GB(_m[t].m5, 0, 2);
}


static inline TransportType GetTunnelTransportType(TileIndex t)
{
	assert(IsTunnelTile(t));
	return (TransportType)GB(_m[t].m5, 2, 2);
}


TileIndex GetOtherTunnelEnd(TileIndex);
bool IsTunnelInWay(TileIndex, uint z);


static inline void MakeRoadTunnel(TileIndex t, Owner o, DiagDirection d)
{
	SetTileType(t, MP_TUNNELBRIDGE);
	SetTileOwner(t, o);
	_m[t].m2 = 0;
	_m[t].m3 = 0;
	_m[t].m4 = 0;
	_m[t].m5 = TRANSPORT_ROAD << 2 | d;
}

static inline void MakeRailTunnel(TileIndex t, Owner o, DiagDirection d, RailType r)
{
	SetTileType(t, MP_TUNNELBRIDGE);
	SetTileOwner(t, o);
	_m[t].m2 = 0;
	_m[t].m3 = r;
	_m[t].m4 = 0;
	_m[t].m5 = TRANSPORT_RAIL << 2 | d;
}

#endif